EP0379477A1 - Chape de coulis a auto-egalisation, et produit sec utilise pour la preparer. - Google Patents

Chape de coulis a auto-egalisation, et produit sec utilise pour la preparer.

Info

Publication number
EP0379477A1
EP0379477A1 EP87905754A EP87905754A EP0379477A1 EP 0379477 A1 EP0379477 A1 EP 0379477A1 EP 87905754 A EP87905754 A EP 87905754A EP 87905754 A EP87905754 A EP 87905754A EP 0379477 A1 EP0379477 A1 EP 0379477A1
Authority
EP
European Patent Office
Prior art keywords
weight
slurry
self
parts
dry product
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP87905754A
Other languages
German (de)
English (en)
Other versions
EP0379477B1 (fr
Inventor
Rainer Allan Algars
Helena Inkeri Turto
Armas Toivo Hyytia
Markku Leino
Bell Jean Le
Fred Sunden
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Weber Oy AB
Original Assignee
Partek Oy AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8556426&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0379477(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Partek Oy AB filed Critical Partek Oy AB
Priority to AT87905754T priority Critical patent/ATE88167T1/de
Publication of EP0379477A1 publication Critical patent/EP0379477A1/fr
Application granted granted Critical
Publication of EP0379477B1 publication Critical patent/EP0379477B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/08—Acids or salts thereof
    • C04B22/14—Acids or salts thereof containing sulfur in the anion, e.g. sulfides
    • C04B22/142—Sulfates
    • C04B22/143—Calcium-sulfate
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/34—Non-shrinking or non-cracking materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/60—Flooring materials
    • C04B2111/62—Self-levelling compositions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Definitions

  • the present invention relates to a self-leveling slurry screed and "to a dry product for use in preparing it; on site, water is mixed with the dry product to prepare a ready-to-use self-leveling slurry screed.
  • Water is mixed on site with the dry raw ingredients of the self-leveling slurry screeds to form a ready-to-use slurry screed.
  • a typical amount of water mixed with the dry raw ingredients is approximately 20-25 % by weight, calculated from the dry ingredients.
  • the basic raw ingredients include cement, which serves as the binder, sand, various fillers, gypsum as a shrinkage-compensating agent, as well as admix ⁇ tures which improve adhesion and provide flow properties.
  • slurry screeds require a good base in order to ensure adhesion.
  • the base to be slurry-screeded must be firm and the surface must be clean, for example from cement adhesive.
  • Special bases, such as wooden floors, are not normally suitable as bases for self- leveling slurry screeds, owing to the movement of wood due to moisture.
  • Cement serving as the binder in slurry screeds will shrink when drying and will produce stresses in the slurry screed." If the stresses are high and the base is weak or unsuitable for the slurry screed, the screed may crack, detach from its base and break into fragments. Reinforcing of the slur ⁇ ry screed by means of, for example, metal mesh, will im ⁇ prove the situation somewhat, but the method is in practice inconvenient.
  • these objects have been accomp ⁇ lished in a highly satisfactory manner by means of a self- leveling slurry screed which, in addition to binder, aggre ⁇ gate, possibly admixtures used in the preparation of self- leveling slurry screeds, and water, also contains fibers.
  • the invention also relates to a dry product for use in the preparation of a self-leveling slurry screed for floors, the dry product containing, in addition to binder, aggre ⁇ gate and possibly admixtures used for the preparation of self-leveling slurry screeds, also fibers.
  • Water is mixed with this dry product on site in an amount of approximately 20-30 %, preferably 22-26 %, calculated from the dry product.
  • the fibers used in the slurry screed and dry product ac ⁇ cording to the invention may be, for example, synthetic polymer fibers, such as polyolefin, polyacrylic nitrile or polyvinyl alcohol fibers or carbon fibers or other fibers of similar types.
  • Polypropylene fibers are especially ad ⁇ vantageous.
  • the products according to the invention i.e. the slurry screed for floors and the dry product, contain fibers pref ⁇ erably approximately 0.05-3 % by weight, calculated from the dry materials.
  • the typical length of the fibers is 1-20 mm, preferably approximately 5-7 mm.
  • the products according to the invention contain as binder preferably cement, but other binders or binder mixtures can also be used.
  • the products contain as aggregate preferably sand, but other aggregates, such as limestone powder, can also be used.
  • the products according to the invention may additionally contain various admixtures used in products of similar types, for example fillers such as fly ash, adhesives such as polyvinyl acetate (PVA) powder, shrinkage-compensating- agents such as gypsum, flow-promoting agents such as Mel- ment (trademark, manufacturer S K W) , anti-foaming agents, and retarders such as gypsum retarder.
  • fillers such as fly ash
  • adhesives such as polyvinyl acetate (PVA) powder
  • shrinkage-compensating- agents such as gypsum
  • flow-promoting agents such as Mel- ment (trademark, manufacturer S K W)
  • anti-foaming agents such as gypsum retarder.
  • composition of a self-leveling slurry screed according to the invention is a preferred composition of a self-leveling slurry screed according to the invention:
  • binder preferably cement 25-60 parts by weight aggregate, preferably sand 20-40 parts by weight filler, preferably fly ash 0.1-5 parts by weight adhesive agent, preferably PVA powder 0.1-10 parts by weight shrinkage-compensating agent, pref ⁇ erably gypsum
  • flow-promoting agent preferably gypsum
  • binder preferably cement 25-60 % by weight aggregate, preferably sand
  • filler preferably fly ash
  • adhesive agent preferably PVA powder
  • shrinkage-compensating agent preferably gypsum
  • flow-promoting agent preferably gypsum
  • the surprising properties of the fiber-reinforced slurry screed for floors include the ability cf the product to remain self-leveling and pumpable in spite of the addition of fibers, since it could have been expected that the addi ⁇ tion of fibers would in general lead to the elimination of these properties, or at least to a substantial deteriora ⁇ tion of these properties.
  • the self-leveling slurry screed according to the invention extends the use of slurry screeds also to surfaces which have traditionally been regarded as problem areas. It has been experienced as a deficiency of normal slurry screeds for floors that they are not suitable for the leveling of bases appearing in renovation and repair construction, such as weak concrete, wood and various compound floors (for example, magnesite floors or gypsum mix floors).
  • the fiber- reinforced slurry screed according to the invention can be used for these purposes.
  • the self-leveling fiber-reinforced slurry screed according to the invention can, in addition, be used for coating a rather soft base, such as a mineral wool base, whereby a well adhering, internally strong, resilient and wear- resistant final coating for use is obtained.
  • a rather soft base such as a mineral wool base
  • the excellent useful properties of the slurry screed ac ⁇ cording to the invention are achieved by incorporating fibers, especially polypropylene fibers, into the screed. Owing to vigorous agitation, at the preparation step the fibers do not bind to each other but remain detached and are evenly distributed throughout the whole mix.
  • a mixture of dry ingredients was prepared by mixing vigor ⁇ ously the following ingredients:
  • the obtained slurry .screed is self-leveling and, when hard-- ening, it will form a coating which has excellent mechanr ical properties.
  • a compression test prism (prism A) was made from the slurry screed prepared in the example presented above and, respec ⁇ tively, a compression test prism (prism B) was made of a slurry screed which did not contain polypropylene fibers but in other respects corresponded to the slurry screed de- scribed in the example presented above.
  • prism B When prism B is stressed, at a certain stress the prism will fracture, i.e. prism B is brittle.
  • the fiber-reinforced structure ensures the functioning of the product, and the slurry screed consti ⁇ tutes in a certain sense a bearing structure which the fibers keep cohesive.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Treatment Of Sludge (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Vehicle Body Suspensions (AREA)
  • Laminated Bodies (AREA)
  • Paints Or Removers (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Road Paving Structures (AREA)

Abstract

La présente invention se rapporte à des chapes de coulis à auto-égalisation, qui, outre un liant, en général du ciment, un agrégat, en général du sable, et de l'eau, ainsi que d'autres ingrédients classiques des chapes de coulis, comportent également des fibres, de préférence des fibres de polypropylène. Est également décrit un produit sec utilisé pour la préparation de telles chapes.
EP19870905754 1987-08-26 1987-08-26 Chape de coulis a auto-egalisation, et produit sec utilise pour la preparer Revoked EP0379477B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87905754T ATE88167T1 (de) 1987-08-26 1987-08-26 Schlamm fuer selbst-ausnivellierenden estrich und ein trockenprodukt zu seiner herstellung.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FI1987/000110 WO1989001916A1 (fr) 1987-08-26 1987-08-26 Chape de coulis a auto-egalisation, et produit sec utilise pour la preparer

Publications (2)

Publication Number Publication Date
EP0379477A1 true EP0379477A1 (fr) 1990-08-01
EP0379477B1 EP0379477B1 (fr) 1993-04-14

Family

ID=8556426

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870905754 Revoked EP0379477B1 (fr) 1987-08-26 1987-08-26 Chape de coulis a auto-egalisation, et produit sec utilise pour la preparer

Country Status (6)

Country Link
EP (1) EP0379477B1 (fr)
AT (1) ATE88167T1 (fr)
DE (1) DE3785460T2 (fr)
DK (1) DK49490D0 (fr)
NO (1) NO301000B1 (fr)
WO (1) WO1989001916A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6368587B1 (en) 1997-06-28 2002-04-09 Huels Aktiengesellschaft Bioactive surface coating using macroinitiators
EP3805181A1 (fr) 2014-03-31 2021-04-14 Sika Technology Ag Composition de matériau de construction à séchage rapide à base d'un liant hybride minéral

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5510418A (en) * 1988-11-21 1996-04-23 Collagen Corporation Glycosaminoglycan-synthetic polymer conjugates
FR2665698B1 (fr) * 1990-08-10 1993-09-10 Conroy Michel Ciment complemente melange a des granulats selectionnes, pour l'obtention de mortier ou beton sans retrait, auto-lissant et auto-nivelant.
FR2704853B1 (fr) * 1993-05-07 1995-07-28 Dijon Beton Béton à propriété autolissante et autonivelante.
EP0733603A1 (fr) * 1995-03-24 1996-09-25 Carla Milesi Mélange pour la formation de sols coulés sur place, de panneaux de revêtement ou similaires
FR2751956B1 (fr) * 1996-07-30 1998-10-30 Grp Francais De Construction G Composition de beton de structure autonivelant et autolissant
RU2466951C1 (ru) * 2011-07-06 2012-11-20 Юлия Алексеевна Щепочкина Сырьевая смесь для получения искусственной породы
EP3100990A1 (fr) 2015-06-05 2016-12-07 Kerneos Composition de liant et composition de mortier, en particulier une composition de mortier auto-nivelante présentant une meilleure résistance au polissage

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4039492A (en) * 1975-11-26 1977-08-02 Hamilton Materials Synthetic fiber water base surface coating composition
GB2035990A (en) * 1978-11-28 1980-06-25 Hawkins & Tipson Ltd Fibre Containing Water- Hardenable Masses
DE3028559C2 (de) * 1980-07-28 1983-10-13 Wilhelm Schön KG, 4428 Rosendahl Trockenmörtel-Fertigmischung und ihre Verwendung
US4428775A (en) * 1981-02-11 1984-01-31 National Gypsum Company Reinforced cement sheet product containing no asbestos for fabricating on hatschek machine
US4394175A (en) * 1981-05-07 1983-07-19 Cheriton Leslie W Self-levelling cementitious mixes
AU2801384A (en) * 1983-05-16 1984-11-22 Hugh N. Davis Self-levelling cement compositions

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8901916A1 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6368587B1 (en) 1997-06-28 2002-04-09 Huels Aktiengesellschaft Bioactive surface coating using macroinitiators
EP3805181A1 (fr) 2014-03-31 2021-04-14 Sika Technology Ag Composition de matériau de construction à séchage rapide à base d'un liant hybride minéral
DE202015009909U1 (de) 2014-03-31 2021-06-02 Sika Technology Ag Schnelltrocknende Baustoffzusammensetzung auf Basis eines mineralischen Hybridbindemittels
EP4129951A1 (fr) 2014-03-31 2023-02-08 Sika Technology AG Composition de matériau de construction à séchage rapide à base d'un liant hybride minéral

Also Published As

Publication number Publication date
DK49490A (da) 1990-02-23
DK49490D0 (da) 1990-02-23
DE3785460D1 (de) 1993-05-19
EP0379477B1 (fr) 1993-04-14
NO900856D0 (no) 1990-02-22
NO900856L (no) 1990-02-22
DE3785460T2 (de) 1993-08-19
NO301000B1 (no) 1997-09-01
WO1989001916A1 (fr) 1989-03-09
ATE88167T1 (de) 1993-04-15

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